// My weight loss program.
package main

import "fmt"

// fmt.Print 和 fmt.Println
// 可以传递若干个参数，之间用逗号分开。
// 参数可以是字符串、数字、数学表达式等等。

// main is the function where it all begins.
func main() {
	fmt.Print("My weight on the surface of Mars is ")
	fmt.Print(149.0 * 0.3783)
	fmt.Print(" lbs, and I would be ")
	fmt.Print(41 * 365 / 687)
	fmt.Print(" years old.")

	fmt.Println("My weight on the surface of Mars is", 149.0*0.3783, "lbs, and I would be", 41*365.2425/687, "years old.")

}
